MSK071C-0300-NN-S2-UG1-RNNN Bosch Rexroth Indramat
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MPN: R911376518
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The Bosch Rexroth Indramat MSK071C-0300-NN-S2-UG1-RNNN is part of the MSK IndraDyn S Synchronous Motors series and has a motor size of 071 with a length C design. This servomotor features natural convection cooling, an IP65 protection rating, and an optical singleturn encoder with a resolution of 2048 signal periods. It includes a plain shaft and an electrically-released holding brake with a holding torque of 23 Nm.
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Product Description:
The MSK071C-0300-NN-S2-UG1-RNNN is an IndraDyn S synchronous servomotor produced by Bosch Rexroth Indramat for the MSK IndraDyn S Synchronous Motors series. It is built to deliver precise rotary positioning and speed control in automated packaging lines, pick-and-place stations, and other closed-loop motion axes where compact torque density and accurate feedback are required. Integrated motor feedback lets the connected drive track rotor position continuously, which helps the axis follow command changes smoothly during acceleration and deceleration. Its compact design also suits repeated start-stop duty, where consistent response is important during short indexing moves.
This motor relies on natural convection for heat removal, so no external blower or liquid circuit is needed when it is mounted with free airflow. Frame size 071 indicates the stator diameter, while the C-length housing balances continuous torque with installation depth. Winding code 0300 matches the electrical characteristics to standard Rexroth power stages. An optical encoder with EnDat2.1 serial communication is fitted, and its rotatable 240° connector simplifies cable routing inside tight cabinets. The single-turn feedback provides 2048 signal periods per revolution, permitting fine interpolation for servo loop resolution below one arc-minute. The connector can be positioned to suit the machine layout, which helps manage cable bend radius where space around the motor is limited. Increased concentricity machining minimizes radial runout at the plain shaft interface, supporting quiet coupling to gearheads or belt pulleys.
A spring-applied, electrically released brake supplies 23 Nm of static holding torque, maintaining load position during safety stops or power loss. The holding brake is intended to secure the axis at standstill rather than provide dynamic braking during normal motion. The housing carries a protection rating of IP65, allowing placement on machinery exposed to dust or low-pressure water jets without additional covers. Operation is permitted at ambient temperatures from 0–40 °C, and the winding insulation meets thermal class 155 for high internal temperature tolerance. The sealed housing also helps keep contaminants away from internal electrical and feedback components.
Frequently Asked Questions about MSK071C-0300-NN-S2-UG1-RNNN:
Q: What type of shaft does the MSK071C-0300-NN-S2-UG1-RNNN motor feature?
A: The MSK071C-0300-NN-S2-UG1-RNNN motor is equipped with a plain shaft, providing smooth rotational output for precise motion applications.
Q: What is the holding brake specification on the MSK071C-0300-NN-S2-UG1-RNNN?
A: This model includes a holding brake with a torque of 23 Nm, which is electrically released for reliable motor holding applications.
Q: How is the MSK071C-0300-NN-S2-UG1-RNNN motor cooled?
A: The cooling method for this motor is natural convection, which allows operation without additional forced cooling systems.
Q: What encoder technology and resolution does the MSK071C-0300-NN-S2-UG1-RNNN use?
A: The MSK071C-0300-NN-S2-UG1-RNNN uses an optical singleturn encoder with 2048 signal periods for precise position feedback.
Q: What level of protection does the MSK071C-0300-NN-S2-UG1-RNNN provide against dust and water?
A: This motor offers an IP65 protection rating, providing complete protection from dust and water jets for reliable operation in harsh environments.
